Glue-bonded multi-ply absorbent sheet
AssigneeGPCP IP Holdings LLC
InventorsDaniel W. Sumnicht, Zhiying Yu, Siddharth S. Vaijapurkar
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Abstract
A multi-ply absorbent sheet includes a first absorbent ply of cellulosic sheet; a second absorbent ply of cellulosic sheet; and a ply bonding adhesive interposed between the first absorbent ply and the second absorbent ply, the ply-bonding adhesive thereby adhering said absorbent plies together. The ply-bonding adhesive comprises polyvinyl alcohol and nanofibrillated cellulose. In a particularly preferred embodiment the adhesive is applied as a dilute aqueous composition to tissue plies and the nanofibrillated cellulose has a Characteristic Breaking Length of 6.5 km or above.
Claims15
A multi-ply absorbent sheet comprising:
- (a) a first absorbent ply of cellulosic sheet;
- (b) a second absorbent ply of cellulosic sheet;
- and
- (c) a ply bonding adhesive interposed between said first absorbent ply and said second absorbent ply, said ply-bonding adhesive adhering said absorbent plies together,
- wherein said ply-bonding adhesive comprises polyvinyl alcohol and nanofibrillated cellulose.
Dependencies are inferred from the claim text.